Often anime and mangas are made into video games, sometimes they turn out ok, like the first pokemon games or even one of the Bleach Wii games was pretty good; other times they turn out not so good, like Gundam: Journey to Jaburo, or any of the yu-gi-oh games. Occasionally video games turn into anime, Final Fantasy Unlimited (I think is what it was) was wonderful, where as that crazy zelda 'anime' was the worst thing created ever, or they turn out just kind of weird like that mario cartoon, or that warcraft comic.

I can't think of other examples, sorry... but either way this is where you come in!

What anime/manga should become a video game?
What video game should become a manga/anime?
Which should not?

Some movies are turned into games, like shrek or POTC, or LOTR, and what have you.

Are those ever good?
What movies should or should not be games?

What are the best and worst trans-media games/anime/manga/movie/ whatever you have seen?